30 results
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
Bell's palsy There ... of Facial Nerve Palsy ... commonest cause of unilateral ... Loss of Corneal Reflex ... #Neurology #Signs
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... , T1 (median) Reflexes ... Conditions Erb's Palsy ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... and Myotomes Reflexes ... • Cauda Equina Syndrome ... dysfunction, and bilateral ... Myotomes #diagnosis #neurology
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Sensory Motor Reflex ... Flexion Biceps Reflex ... None T7-T12 See Dermatomes ... S1 Lateral Calcaneus ... differential #diagnosis #Neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Oculomotor) Nerve Palsy ... Trochlear) Nerve palsy ... One-and-a-half Syndrome ... #Localization #ophthalmology ... #neurology #differential
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Unilateral Fixed ... cranial nerve) Palsy ... lntracranial hemorrhage, SAH ... abnormalities #Unilateral ... differential #diagnosis #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Sciatica: often bilateral ... Examination - bilateral ... region (S2-S4 dermatomes ... wink test - reflex ... diagnosis #causes #neurology
Bilateral tonic pupils observed in the patient with Ross syndrome. 
Absence of bilateral pupillary contraction despite
patient with Ross syndrome ... clinical #video #ophthalmology ... #ross #syndrome ... #bilateral #reflex ... #neurology #absent
Bilateral Abducens Nerve Palsy (CNVI)

#Bilateral #Abducens #Nerve #Palsy #CNVI #CN6 #clinical #video #neurology #ophthalmology #physicalexam
Bilateral Abducens ... Nerve Palsy (CNVI ... ) #Bilateral ... clinical #video #neurology ... #ophthalmology
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis • Bilateral ... Miosis: Horner's syndrome ... , uveitis) • Bilateral ... Robertson pupils), DM, SAH ... differential #diagnosis #ophthalmology